software engineering lecture-1.pptx

8/9/2019 SOFTWARE ENGINEERING LECTURE-1.pptx

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SOFTWAREENGINEERING

Harshali Patil



Course content

• S o f t w a r e E n g i n e e r i n g

• A p p r o a c h e s t o s s t e ! " e # e l o p ! e n t

• S o f t w a r e A n a l s i s a n " $ e s i g n

• R e % u i r e ! e n t E n g i n e e r i n g

• S o f t w a r e P r o & e c t P l a n n i n g

• S o f t w a r e S c h e " u l i n g a n " T r a c ' i n g

• $ e s i g n p h a s e a c t i # i t i e s

• S o f t w a r e ( u a l i t

• S o f t w a r e R e l i a ) i l i t a n "

* a i n t e n a n c e

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References3



E#ol#ing role of Software

What is software?

Software is a Set of instructions+co!puter progra!s, that when

e-ecute" pro#i"e "esire" function .perfor!ance an" Associate"$ocu!entation

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Intro"uction

Software pro"ucts !a )e Generic / "e#elope" to )e sol" to a range of

"i0erent custo!ers

1espo'e +custo!, / "e#elope" for a singlecusto!er accor"ing to their speci2cation

Software engineering is an engineering

approach for software "e#elop!ent

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6



Software Crises7



Factors contri)uting to software crisis

3arger pro)le!s

3ac' of a"e%uate training in softwareengineering

Increasing s'ill shortage

3ow pro"ucti#it i!pro#e!ents

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Software failures9



Software failures10



Software failures11



Software failures12



No sil#er )ullet

The har"ware cost continues to "ecline "rasticall4

Howe#er5 there are "esperate cries for a sil#er

)ullet so!ething to !a'e software costs "rop asrapi"l as co!puter har"ware costs "o4

1ut as we loo' to the hori6on of a "eca"e5 we see

no sil#er )ullet4 There is no single "e#elop!ent5either in technolog or in !anage!ent techni%ue5that ) itself pro!ises e#en one or"er of!agnitu"e i!pro#e!ent in pro"ucti#it5 inrelia)ilit an" in si!plicit4

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Software Engineering

7The esta)lish!ent an" use of soun"engineering principles in or"er to o)tain

econo!icall "e#elope" software that isrelia)le an" wor's e8cientl on real!achines9 : Frit6 1auer ;<=>?@

7A "iscipline whose ai! is the pro"uction of%ualit software5 software that is "eli#ere"on ti!e5 within )u"get5 an" that satis2es itsre%uire!ents9 : Stephen Schach ;<==@

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Co!ponents of software

Progra!s

$ocu!enta

tion

Operatingproce"ure

s

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3ist of "ocu!entation!anuals

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3ist of operating proce"ure !anuals

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Software Process

The software process is the wa in whichwe pro"uce software4

Wh it is "i8cult to i!pro#e software

processB Not enough ti!e

3ac' of 'nowle"ge

Wrong !oti#ations Insu8cient co!!it!ent

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Software Characteristics

Software "oes not wear out

Software is not !anufacture"

Reusa)ilit of co!ponents

Software is e-i)le

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Changing nature of software21

Sste! software

Real ti!e software

E!)e""e" software

1usiness software

Personal co!puter software

Arti2cial Intelligence software

We) )ase" software

Engineering an" scienti2c software



Software *ths +*anage!ent perspecti#e,

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Software *ths +*anage!ent perspecti#e,

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Software *ths +*anage!entperspecti#e,

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Software *ths +*anage!entperspecti#e,

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Software *th+Custo!er Perspecti#e,

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Software *th+Custo!er Perspecti#e,

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Software *th+$e#eloper Perspecti#e,

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software engineering lecture-1.pptx

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